Application to the Study Oversight Committ is required in order to access the data, using the CHBC Manuscript Proposal Form.. By submitting a proposal, application agree to (1) gain approval from the CHBC for all concepts, data analyses, professional presentations, and publications resulting from CHBC's data; (2) abide by specified authorship guidelines; (3) Agree to submit a copy of the syntax and output of your analyses to be verified by CHBC statisticians prior to publication; and (4) agree to have the manuscript removed if you fail to abide by the established deadline for manuscript completion.